Ceiling fan



FIG. 1 is a side, bottom perspective view of a ceiling fan showing my new design;

FIG. 2 is a cross-section view thereof taken along the line 2--2 in FIG. 4 and looking in the direction of the arrow;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is an enlarged side elevational view thereof, the remaining side views being substantially the same. 

The ornamental design for a ceiling fan, as shown and described. 